Machines



(No Model.) 7 SheQISI-Shet 2.

S. D. TUCKER.

SEEET DELIVERY APPARATUS POE PRINTING MACHINES. No. 293.121. Patented Feb. 5, 1884.

E ro R N. FETERS. Phnlwmbagmprnf, washinglm D, C.

(No Model.) `A 7 sheets-sheet 3.'

S. D. TUCKER. l

SNEET DELIVERYAIPARATUS POR PRINTING MACHINES. No. 293,121. Patented Feb. 5, 1884.

'V i Invair-fior', l I 15.17. .Zwerl NA PETERS. Phallhognphm'. Waxhinglan. D. C.

Z Sheets-Sheet 4.

(No Modem A S. D. TUCKER.

SEEET DELIVERY APPARATUS EOE PEINTINEMAGEINES.

Patented Feb. 5, 1884.

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(No Model.) 7 Sheets-Sheet 5.

S. D. TUCKER. SHEBT'DELIVBRY APPARATUS FOR PRNTING MACHINES.

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7 Sheets-Sheet 6.

4(No Mode'l.)

S. D. TUCKER.

SHEET DELIVERY APPARATUS POE PRINTING MACHINES.

Patented Feb.v 5,A `1884.

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(No Model.) 7 Sheets--Sheet 7. S. D. TUCKER. SHEET DELIVERY APPARATUS POR PRINTING MAGHINE".

No. 293.121. Patented Feb.5, 1884.

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SHEET-foirlVERYM APPARATUsi-oe PRINTlNe-MACHINES.

SEECIFICATION forming part of Letters Patent No. 293,121, dated February 5, 184. Application iiledScptember 1J, 1F51. (No model.)

To all 1.071,0711/ 711/047 con/ecru.- T v Be it known that I, STEPHEN l). Themen, a citizen of the United States, residing in the city of New York, county of N ew York, and State of N ew York, have invented certain new and useful Improvements in Sheet-Delivery Apparatus for Printing-Machines, fully described and represented in the following specication and the accompanying drawings, form` ing a part of the same.

` rthis apparatus is designed to effect the de- Y livery of sheets of varying sizes produced by the printing mechanism, its mechanisms being so constructed and organized as to be capable of folding an eight-page o1; double sheet and four-pageer single sheet and a two-page or half sheet of, say, an ordinary newspaper. It embraces a primary sheet-1nanipulating mechanism supplied with a folding-blade and means for' throwing it into and out of4 operation at certain revolutions ot' its carrier, and with supplementall devices whereby a gathering operation is effected, so that two sheets may be assoeiated and folded together. This primary mechanism is rotative in its operation, and has combined with itv a secondary slicet-manipulating apparatus, the folding` devices whereof are of the vibratory order, which secondary apparatus is organized with change-gearing, so that while thc primary apparatus always runs at onespeed the secondary apparatus maybe operated at three diiierentspeeds* viz., one that is uniform'with that of theprimary mechanism, one that is a lesser speed, and a third that is a greater speed-so that the secondary apparatus may always be oper` ated at the speed required to perform its work according to the requirements determined by the size and number of the sheets it is to operate upon, which size is iiXed by the manipulation of them performed in theprimary apparatus:

A practical embodiment of the improvements embraced herein is illustrated in the drawings by such views as are necessary to illustrate its construction and various adjustments. d l

In saiddrawings, Figure l illustrates a side elevation, Fig. 2 a plan view, and Fig. 3 an end elevation,of the apparatus as adjusted and operating to fold and deliver singleor four- .page sheets. Figs. 4 and 5 are side elevations,

illustrating the adj ustment of the apparatus and its operation in collecting two single or four-page sheets to makea double or eight-v page sheet and the simultaneous folding of such collected sheets. Fig. 6 is a side elevation, and Fig. 7 an end elevation, of the apparatus as adjusted to fold and deliver two-page sheets, Figs. 8 and 9 being face and side elevations of the sheet-forwarding arms.

The structure of the apparatus will now be explained in detail, in order` that its various operations may bereadily comprehended.

The primary mechanism consistsof rotating cylinders or carriers A B, mounted in a suit able frame-work, geared together so as to run in unison by toothed wheels 101 102, and driven by a toothed wheel, 104, on the shaft 51 of the carrier B, which wheel, in practice, will be connected by a train o f wheels connecting with a driving-wheel on one of the shafts of a rotary printing-machine-such, for instance, as a toothed wheel on the shaft of one of the cutting-cylinders of such printingmachine-which cutting-cylinders,as is well understood, form a part of a rotating webprinting machine, whereby the printed web is severed or partially severed transversely upon suitable lines dividing such web into sheets. As the collection and delivery of two single or four-page sheets, each of which equal in length, or nearly so, to the circumference of .the carriers A and B, is provided for in this apparatus, it is to be understood that the typccylinders will be twice the size of said carriers, so that when two single sheets are collected to form a single product said sheets shall bear different printedmatter, and when single sheets are delivered singly two duplicate forms are placed on the cylinder, and for two-page sheets four duplicate forms are used. t

' The carriers AB will b e slightly larger than the cutting-cylinders, but will run turn for turn with them, so that the delivery apparatus here illustrated will run slightly faster than the printing mechanisms, the, purpose being to .cause the sheets severed or partially sev,-A ered by the cutting mechanisms to be advanced rapidly enough to separate succeeding sheets a short distance apart, to provide a workingspace between them, soas to permit their manipulation in the delivery apparatus without A, (JI

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x wanen onesheetinterfering with another. The sheets peiiphery of its carrier A when the blade I arefconducted from the cutting-cylindersto this delivery apparatus by means of the tapes 60 61, which are stretched, as is common, from two rollers or sets of pulleys set j ust in advance of said cutting-cylinders, as is shown in the Patents Nos. 192, 954, July 10, 1877, and 191,494, May 29, 1877, and others heretofore granted to me. The uppertapes, 60, run from the upper rollers or pulleys into Contact with the upper portion of the carrier A andreturn over pulleys 52 and 152, while the lower tapes, 61, run from the lower pulleys and return over pulleys 53. These tapes 60 61 form a conveyer in connection with conductors 20, that bridge the space between the pulleys 53 and the carrier A, that direct the sheets in succession onto said carrier A. An auxiliary set of tapes, 62, are also provided, which run in contact with the surfaceof the carrier A, pass over pulleys 54, and are stretched thence to compensatingpulleys 55, that are hung in drop-arms 56. These tapes are properly driven by means of pinions 70, 71, and 72 from the toothed wheel 101, andthe tapes 62 are provided with vibrating rollers or pulleys 57, hung in arms from a shaft, 58, that is provided with a rockarm, 59, and a connecting-rod, 68, that 'is adapted to be connected with a cranlrarm, 69, on the shaft 73, so that said tapes may be carried into contact with the carrier A, as is shown in Fig. 4, and they will be vibrated into and out of said contact, as is shown by said Figs. 4

and 5, for a purpose that will hereinafter appear. f

The carrier A is provided with a set of grippers, 10, fixed on a rod that is journaled in said carrier, and provided with a rock-arm, 11, and an operative closing rod and spring, 12, inthe usual manner common to such devices, their opening action being effected by contact of said rock-arm 11 with a stationary cam, 21, as is usual. Said carrier is also provided with a swinging folding-blade, 9, which is fixed upon a shaft, 8, journaled in the carrier-heads, one end of which shaft is provided with a two-branch rock-arm, 22, one of which branches is provided with a spring-seated rod,

23, and the other with a friction roller or stud,

24, that at times is engaged by a movable cam, 25. This cam 25 is carried by a rock-arm, 26, the vibrating movements of which are imparted by means of a rock-arm and a connectingrod, 74, which may be adjusted so that its stud or roller may travel in the path-cam 75, as in Fig. 4, or be disconnected there-from, as in Fig. 1, in which latter case the stationary forward position of the cam 25 will be maintained by a thumb-screw, as 7, locking the arm of said cam to thel side frame, as in Figs. 1 and 2. Then the blade 9 is moved forward and outwardly in passing the cain 25, as in Figs. 1 and- 6, it has a true radial position, while when the said blade is relieved from the operation of Asaid cam, so that its spring-rod 12l may thrust its rock-arm outwardly,'said blade is moved backward, so that its vpoint is brought within the stands in the inclined position shown in Fig. 4.

The carrier B is provided with a xed jaw 7o formed by one wall of an opening in vits periphery and with a vibrating co-operating jaw, 5, substantially as is shown and described in Patent No. 143,674, October 14, 1873; but in this instance the vibrating jaw is constructed like the blade 9-that is,it is mounted upon a shaft, -27, that turns in the carrierheads, which shaft has a two-branch rock-arm carrying at one end a spring-seated rod', 28, and at the other a stud or roller that travels upon the cam 30, which cam is fixed -to the frame-work and operates said jaw 5 at each revolution of the carrier B. The secondary sheet-manipulating apparatus is driven by a longitudinal shaft, 110, through a miter-wheel, 111, that is engaged by a similar wheel, 112, carried by a crossshaft, 113, upon the opposite end of which shaft is atootlied wheel, 103, that meshes with the wheel 104. on the shaft 51 of the carrier B. Motion i-s also derived from the shaft 113 to drive the cam 75 by means of atoothed wheel, 105, mounted upon the shaft 113, inside the frame-work, (see Fig. 2,) that mesheswith a toothed wheel, 106, on the shaft 73.` This secondary sheet manipulating` apparatus is provided with vibrating folding and sheetcarrying mechanisms that operate to direct the sheets at right angles to their path of travel in entering tlievsarne. lt embraces a pair of sheet-carrying rollers, 65 66, that are provided with pinions 86, so as to run in IOO unison, said rollers being rotated by means of a pinion, 87, carried by the roller 66, and a train of wheels, 88 89 90 91 92 95, which derive motion from the counter-shaft 114, which derives its motion through change-[gearing from the longitudinal shaft 110. This longitudinal shaft is provided with three driVing-wheels-viz., a sliding pinion, 98, and two fast gear-wheels, 93 and 97. The wheel 96 is slid in and out of gear, as required, with awheel, 93, of equal size, fast'on the shaft 110, and the pinion 98 can be slid in and out of gear with a wheel of double its size, 100, fast on the shaft 115, which will make this latter shaft run at an equal speed and at half the speed of the shaft 110. The wheel 94 can be slid in and out of gear with the equal-size wheel 93, faston the shaft 110, the pinion 116 can be slid in and out of gear with a wheel of double its size, `97, fast on the shaft 110, and the pinion 98 can be slid in and out of gear with the wheel of double its size, 99, lfast on the shaft 114, so that this latter shaft can run at equal speed, at double speed,and at half the speed of t-he shaft 110. It will thus be apparent', that while the shaft 110 is constantly driven at the same speed given to the primary apparatus from the printing-machine, said shaft, primary apparatus, and printing-machine will run in unison, and that when the wheel 93 is gearedwith the equal-size wheels 94 96, and the wheel 97 is IIO `disengaged from the pinion 116, and pinion 98 `from wheels99 100, as' in Fig; 1, the-sec` ondary apparatus will be driven in unison or at the same speed -as theprimary apparatus and` printing-machine, for the reason that the wheels 96, 93, and 94 are of equal diameter;

'also,that when the pinion 9S is geared with the wheels 99 100and the `wheels 94 96 are paratuswill bedriven at twice the speed of` the primary apparatus, for the reason that the driven pinion 116 is but half the size of its driving-wheel 97, which makes turn for turn with the carriers A B, and of course with the cutting cylinders. The purpose and advan- `tage of this change-gearing will be fully set forth in the description of the operation of the devices. Y

'Ihe secondary mechanism is provided at opposite sides with socket-arms 4941*, motion being communicated tothe arm 4() by a rock shaft andarin,42,and connecting-rod43 fromacrankdisk, 44, onthe shaft `115, and to the rock-arm 41 by a rock shaft and arm, 45, connecting-rod 32 of which are seated in socket-arms 40, as in.

46, and crank-disk 47 onsaid shaft 115. `The socket rock-arm 49 is always in operatio,but may carry either a folding-blade, 31, the arms Figsl to 5, or a sheet-forwarder consisting of a roller, 33, and guide-plate 34,secured to said socket rock-arm by arms 35, as in Fig. 7,`

which blade 31, `thus vibrated, will enter between the :rollers 65 66, ,or which sheet-forwarder, thus vibrated,will enter its guide-plate i 34-between said rollers and bring its roller 33 into frictional contact with the roller 65. This socket rock-arm 41, notrequiring to be constantly operated, has its rod 46 arranged to be disengaged from the crankpin 4 and temporarily secured out of operation by a screw, 76, securing it to the side frame, as in Fig.` 3, orto be adjusted into operative position, as in Fig. 7 ,where it is shown to be supplied with a sheet-forwarder consisting of and `in a vertical direction, isa cage made up of ,flat bars or wires 15 16, suspended to the l frame-work, so as to form a receptacle into which `the sheet emerging from between the rollers 66 may descend and rest in a vertii cal position in front of rollers 8() 81,that have theiraxes parallel with those of the rollers 65 66, and which are driven by the wheels 89 90.

With these rollers 8() 8l a vibrating foldingblade, 17, coacts, which blade is carriedrby.

arms 82,pro iecting from a shaft that is vibrated by a rock-arm, S3, and a e.onnecting-rod, S4, froma crank-pin, 3, that is secured upon the face of the wheel 95.

Sets of tapes 63 extend from the carrier, B over a roller, 7S, and outward in a plane just above the rollers 65 66,and return over pulleys 79 and under pulleys 50, with `which tapes an under set, 64, co-opera-te, said tapes being stretchedmfrom the roller 78 and return over pulleys 77, and are driven by a pinion, 19, on the shaft of the roller 78,which gears withthe wheel 102. These tapes, in connection with a lappiugguide, 150, form a conductor for conveying sheets from the primary apparatus to the secondary apparatus.

In connection with the carrier A is arranged v a circular cutter, 48, the shaft of which is mounted in rock-arms 49, by which it may be depressed with its edge traveling in a groove in .the periphery of said carrier, as in Fig.` G Y when it will operate to divide the sheets longitudinally, or it will let them pass uncut.

when raised out of such operative position, as in Fig. 1.

In order to a more ready understanding of the operations of these mechanisms, I will first describe the same in connection with the de livery of the single or four-page sheets-that is, sheets of a length equal to one-half the. cirf cumference ofthe type-cylinders and slightly shorter than the circumference of the carrier A, the circun'iferenee of which carrier is equal to the length of the sheet plus the Working space. Vhen the mechanisms are arranged to operate upon such sheets, the tapes 62 will be thrown out of action by disconnecting the rod 63, and thus dropping the vibrating pulleys 57. The pinions 9S and 116 are then thrown out of engagement with the wheels 99, 100,` and 97, as in Fig. 1, and the folding-blade 31 is IOO IIO

adjusted in the socket rocksarms 40, while the socket rock-arms 41 are thrown outof action by disengaging the connectingrod 46 from the crank-pin 4 and securing the same by the thumb-screw 76, as in Fig. 3. Thus adjusted, the mechanisms will all run in the same time. The` cutter 4S will be adjusted in its raised position, and the cam 25 will besecured in its forward position by the thumb-screw 7, as in Fig.V 1, so as to vibrate the folding-blade 9 at each revolution of the carrier A. Each single or four-page sheet conducted from the printing-machine by the tapes 60 61 willbe guided onto the carrier A, its front orA leadingedge enteredbeneath lthe grippers 10 then open',

which grippers will immediately close onto and seize said sheet, and thelsheet will be carried onward around with said carrier. Its middle portion or line of ultimate folding will thus be led over the point occupied 'by the folding? blade 9, and as the stud or roller 24 of the foldin gfblade rock-arm 22engages the cam 25 said blade will bethrust forward andoutwardly, car,-

rying theppaper with it and entering the same between the stationary j aw andthe vibrating jaw v of the carrier B, the grippers 10 being opened to release the forward end of the sheet at thesame time. As the carriers A B further revolve, the jaw is quickly closed upon the bight or creased line of the paper bythe action of the cam 30, thus clamping or securing the sheet to said carrier B, so that the sheet sh all thereafter be=ca rried around by said bight or creased part. In such movement of it with the carrier B, the blade 9 being withdrawn ,as thccam is passed, 'the sheet is drawn between the lapping-guide 15() and the periphery of thevcarrier B, its free ends being thus laid together, and is directed by the tapes 63 64 out over the rollers 65 66 until it is arrested by gages 120, Momentarily resting in these tapes, it is struck on a line at right angles with its first fold by thc downward movement of the folding-blade 31, which doubles or creases it into the nip ofthe rollers 65 66, which, revolving, cause it ,to descend into the cage or guide formed by thewires 15 16. In this cage it rests in a vertical position before the folding-rollers 80 81, into the nipor bight of which the folding-blade.

it is doubled on a line parallel with its second fold by the movement of the blade 17, which is vibrated to perform that operation, said blade being cut away at proper points of its edge to pass by the wires 15 16. The sheet thus a third time folded, in passing between the rollers 80 81, emerges therefrom as in Fig. 3, and may be thence guided to any piling or further Vfolding apparatus. l f, now, itis desired to collecttwo such single or four-page sheets to make au eight-page or double sheet, so as to form a product consisting of two such sheets combined and-folded together, the tapes 62 are adjusted so as to be alternately rocked into contact with the lower surface of the carrier A, as in Fig. .4, and out of contact with such surface, as in Fig. 5, by connecting the rod 68 with the crank 69, as in said figure, whereupon during aportion of one revolution of the carrier A the tapes 62 will be heldin contact therewith, as in Fig. 4, and during the next revolution of said cylinder will .be removed from such contact, as in Fig. 5. This converts the carrier A into a gathering-cylinder. The cam 25 is also 'relieved from its stationary position and made to vibrate at each second revolution ofthe carrier A by attaching the connectingrod 74, that lis connectedV to its rock-arm, to lthe cam 75 by sliding the same on the shaft 73, so that the stud or roller 13 of the rod 74 will be engaged by said cam-groove, as in Figs. 4 and 5. This converts said` carrier A -into a combined gathering and folding cylinder,

The forward end of this sheet will be, when released by the grippers, sustained and carried onward by the tapes 62, which are then in their positionl of lcontact with said carrier, said sheet thusmaking a revolution with said carrier A as a mere guiding-cylinder, without being affected by the folding-blade. As the forward edge of the sheet arrives at the upper side of said Acylinder it receives upon it a second sheet coming from the printing mechanisms, the leading edges of the two sheets being seized by the grippers and carried around with the carrier A. In this revolution of said carrier the cam 25 is in its foremost position and the tapes 62 have dropped out of contact with the carrier, as in Fig. 5, in consequence of which the leading edges of the two sheets are released by the grippers, so as to be free just as the middle or folding line of the two sheets is creased or doubled linto the nip of the jaws of the carrier B, and thus doubled they are carried out over the rollers 66 lof the secondary sheet-nianipulating apparatus and rest yagainst the gages 12, precisely as has been described with reference to the single four-page sheets.

It will be observed that as two single or four-page sheets are brought one upon the other and folded so as to occupy the llength of but one or a single four-page folded sheet, there are just one-'half thetnumber ofsets of such folded single or four-page sheets conveyed to the secondary sheetmanipulating apparatus, and consequently. that if such apparatus bc run at the same speed as the lprimary apparatus it will operate uselessly onehalf of the time. To avoid thisand yet perform the second folding of these once-folded pairs of sheets as rapidly as they can begathered and folded, it is only necessary that the secondary apparatus shall run at olie-half the speed it must have when manipulating single sheets. This is accomplished by thrwing the wheels 94 96 out of gear with the wheel 93, and by adjusting the pinion 98 in gear with the wheels 100 99, as in Figs. 4 and 5.

The motion of the primary apparatus will then be transmitted through the wheels 98 to the wheels 99 100, and thence to the devices of the secondary apparatus, the speed of which, in consequence of the size of the pinion l98, will be one-half that of the primary apparatus, andas but half the number of sets of sheets now require to be manipulated by said secondaryy apparatus, the movements of its said devices, the folding-rollers 65 66 80 S1 included, will be properly timed so that each oftheir operative actions will be effective and suiiicient to fold said once-folded sets of single or four-page sheets a-second and third times, as werethe uncollected single or four-page sheets.

In producing half or two-page sheets, the

IOO

tapes 62 are thrown out of action by disconnecting the rod 68. The cam 25 is secured in its forward position by the set-screw 7. The cam 75 is disengaged from the rod 74, and the cutter 48 is lowered into` operative relation to the carrier A, as in Fig. 6. Each single or four-page sheet theneonducted onto the earrier A will be severedlongitudinally bythe tral meeting edges of t-hese two half or two-v page sheets occupy a centralpoint immediately above therollcrs 65 66, and consequently that `no folding operation upon that line can be performed upon them by a folding-blade, as 31. In order, therefore7 to further fold such half lortwo-page sheets, the said folding-blade 3l is removed, and the sheet-forwarders, composed of the rollers 33 37, with their guideplates 34 3S, are adjusted by their arms 35 36 in the socket r0ck-arms 40 4l, as in Fig..7, the latter socket rock-arm heilig' now thrown into operation by adjusting the disconnected rod 46 upon the crank-pin 4.

It will now be observed that there are `j ust as many sheets passing longitudinally into the secondary apparatus as in the first adjustment, Y

where single or four-page sheets follow in succession to said apparatus, and that in consequence of the division of such sheets longitudinallyinto two-page sheets the number of sheets in said apparatus to be disposed of is doubled, and as this double number of sheets must pass between the rollers 65 66 in succession, so the speed of such secondary apparatus must be in` creased twofold, and this is done by adjusting the pinion 116 into gear with the driving-wheel 97, the pinion `9S then being removed out of gear with the wheels 100 99, and the wheel 94 from gearing 4with the wheel 93, as is seen in Fig. `6. The motions of the secondary apparatus are thus made twice as often as that of the primary apparatus, for the reason that the driver 97, transmitting the motion of the latter, is twice as large as the driven pinion 116, and this, it will be observed, alsodoubles the speed of the folding-rollers 65.66 8O 81. Vhen c a divided single or four-page sheet or two half or two-page sheets arrive in the secondary appara-tus, one sheet-forwarding device will be quickly vibrated. downward, its blade 34 deiiecting the edge of the sheet underlying it, and the roller 33pressing the same into'contact with the roller 65, thereby causing the` edge of such sheet to enter between said roll,- ers and be carried thereby .down into the cage or guide15 16, in front of the folding-rollers SO 81, through which it is quickly doubled by the folding-blade 17, and from which it emerges a second time folded at right angles to its first fold. So soon as the rear edge of this sheet has passed the. rollers 65 66, the second sheetforwarding device is operated, its blade 38 and roller 37 operatingin like mannerto direct and drive the second page sheet into thecage or guide 15 1.6. The two half or two-page sheets are thus quickly delivered outof the tapes overlying therollers 65 66, so as to make lthe gathering and folding mechanism in the primary apparatus may be arranged so as to collect any number greater thantwo sheets,

as may be desired, a corresponding arrangement of the change-gearing and secondary apparatus being made. The two collected single or four-page sheets may be pasted together, if desired.

. The following broad subject-matter,being claimed in a companion application, is disclaimed here: the combination, with a primary apparatus adapted to fold sheets and a secondary apparatus to which such sheets are delivered and by which they are folded, of `int-erchangeable gearing whereby the secondary apparatus is driven at the same or a lesser speed than vthe primary; also, a primary apparatus adapted to associate sheets, a secondary apparatus adapted to fold such sheets, means for rendering the associating devices inoperative, and means for varying the speed of the secondary apparatus. The following is also disclaimed: the combination ,with a rotary carrier eapacitated to fold and gather or collect sheets, of a companion carrier provided with fold-receiving nipping-jaws.

W'hat is claimed is 1. The combination, with a primary apparatus consisting of a rotating folding :and gathering apparatus, of a secondary apparatus consisting of a pair of rollers,.as,65 66, and the interchangeable vibrating folding-blade, and two vibrating sheet-forwarding devices, with change-gearing whereby said secondary ap-` paratus is driven at an equal, a lesser, and a more rapid speed than the primaryapparatus, all substantially as described.

2. Ina sheet-delivery apparatus, the combination, with a primary sheet-manipulating `mechanism andvmeans for rotating the same,-

of a secondary sheet-manipulating apparatus, to which the sheets are i delivered from said primary apparatus, and change-gearing connecting the primary and secondary apparatus, whereby the latter is run at alesser and greater speed than the primary apparatus, while the normal speed of the latter is maintained, all substantially as described.

3. In a sheet-delivery apparatus, the combination, with a primary sheet-manipulating mechanism and means for rotating the same, of a secondary sheet-manipulating apparatus, to which the sheets are deliveredfrom said primary apparatus, and change-gearing connect` IOO ing the primary and secondary apparatus, whereby the latteris run With the same at a lesser anda greater speed than the primary apparatus,while the normal speed of thev latter is maintained, all substantially as described.

4. The combinatiomWith a pair of foldingrollers, of means for feeding two sheets over the same so that one edge of each sheet shall overlie said rollers, and means for directing said sheets in succession between said rollers, all substantially as described.

5. rllhe combination, with a pair of foldingrollers, of a slitter for dividing a sheet into two half-sheets, means for feeding said halfsheets so that one edge ofl each shall overlic said rollers, and means for directing said halfsheets in succession between said rollers, all substantially as described.

6. The combination, with a pair of 'folding rollers, of a slitter for dividing a sheet into two half-sheets, means for feeding said halff sheets so that one edge of each shall overlie said rollers, means for directing said halfsheets in succession between said rollers, and means for subsequently folding said sheets, all substantially as described.

7. The combination, with two carriers, as A B, provided with means for associating` sheets and for folding sheets, devices for rendering the gathering means inoperative, and devices for causing the folding means to be inoperative during certain revolutions of itsv carrier, of a subsequent folding mechanism and means for delivering the sheets thereto, and means for varying the speed of the sub,` sequent folding mechanism, all substantially as described.

8. The combinatiomwith a rotating carrier provided with means for gathering sheets thereon, and with' a folding-blade capacitated to move beyond and Within the periphery-of the carrier, of a cam for thus moving said blade, means for vibrating the cam into and out of operative relation with said folding-blade, and a companion revolving carrier provided with nipping-jaws, all substantially as described.

` 9. The combination, with the rotating primary sheet-manipnlating mechanism, operatingto gather or fold, orboth, and-the secondary sheet-manipulating mechanism, of a shaft, 110,

` latter,. and the Wheels 97 and 116, for varying the speed of the latter to double that of the former, While that of the former remains nnchanged, all substantially as described.

ln testimony whereof I have hereunto set my hand in the presence of two subscribing witnesses.

STEPHEN D. TUCKER. Vitnesses:

GEO. H. GRAHAM,

T. H. PALMER. 

